large-calibre artillery
large-calibre artillery is an artillery gun or weapon type.
Also recorded as superheavy artillery.
Overview
Extraordinarily large artillery piece.
In detail
large-calibre artillery is an artillery gun or weapon type.
Sources
Each source is named with the standing the house places on it, so the evidence can be weighed rather than taken on trust.
reference work · Reputable secondary · Wikipedia
“Large-calibre artillery”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q2897627: large-calibre artillery
Consult the source